<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
    <style>
        #app {
            width: 800px;
            margin: 20px auto;
        }

        h2 {
            text-align: center;
        }

        .tabs {
            display: flex;
            margin-bottom: 20px;
        }

        .tab {
            cursor: pointer;
            margin-right: 20px;
            border: 1px solid;
            width: 80px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            font-size: 20px;
        }

        .focus {
            background: rgb(162, 131, 116);
            color: #fff;
        }

        .book {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 160px;
        }

        .book-name {
            margin-top: 10px;
            height: 42px;
        }

        .book-price {
            display: flex;
            justify-content: space-between;
        }
    </style>
</head>

<body>
    <div id="app">
        <h2>每日精选</h2>
        <div class="tabs">
            <div class="tab focus" @mouseenter="changeBooks('hot',$event)">热销</div>
            <div class="tab" @mouseenter="changeBooks('tec',$event)">科技</div>
        </div>
        <book-list :list="list"></book-list>
    </div>

    <script type="text/x-template" id="book">
        <div class="book">
            <!-- <img class="book-pic" :src="1.png" width="160"> -->
            <img class="book-pic" :src="book.pic" width="160">
            <div class="book-name">{{book.name}}</div>
            <div class="book-price">￥{{book.price}}</div>
        </div>
    </script>
    <script type="text/x-template" id="book-list">
        <div class="books">
            <book v-for="item in list" :book="item"></book>
        </div>
    </script>

    <script>
        Vue.component('book', {
            template: '#book',
            props: ['book']
        })
        Vue.component('book-list', {
            template: '#book-list',
            props: ['list']
        })
        let app = new Vue({
            el: "#app",
            data: {
                books: {
                    hots: [{
                        name: '周大新：安魂',
                        price: '26.90',
                        pic: 'ah.Webp'
                    }, {
                        name: '开端',
                        price: '49.80',
                        pic: 'kd.Webp'
                    }, {
                        name: '长岛小记',
                        price: '33.80',
                        pic: 'cdxj.Webp'
                    }, {
                        name: '沙丘全套 六部曲',
                        price: '394.90',
                        pic: 'sp.Webp'
                    }],
                    tec: [{
                        name: 'C Primer Plus',
                        price: '76.20',
                        pic: 'c.Webp'
                    }, {
                        name: 'Linux就该这么学',
                        price: '94.6',
                        pic: 'linux.Webp'
                    }, {
                        name: '关于火星的一切',
                        price: '39.40',
                        pic: 'linux.Webp'
                    }, {
                        name: '植物的战斗',
                        price: '49.00',
                        pic: 'zw.Webp'
                    }]
                },
                list: []
            },
            methods: {
                changeBooks: function (type, event) {
                    this.list = this.books[type]
                    let tabs = document.querySelectorAll('tab')
                    for (let i = 0; i < tabs.length; i++) {
                        tabs[i].classList.remove('focus')
                    }
                    let tab = event.target
                    tab.classList.add('focus')
                }
            },
            mounted() {
                this.list = this.books['hot']
            }
        })
    </script>
</body>

</html>